Screen



Sept. 18,1923. f 31,468,365?

J. T. MOLTRUP SCREEN Filed Sept. 2'7 1921 2 Sheets-Sheet 1 J. T. MOLTRUPfiept. 18, 1923.

S GREEN Filed Sept. 27.

1921 2 Sheets-Sheet 2 IV NTOR r-ilili-llllllllliiiiliii1111liilllllliiillililmmw wlilil 2 ment is for Patented Sept.18, 1923.

amen stares JAMES '1. MOL'IRUP, OF BEAVER FALLS, PENNSYLVANIA.

SCREEN.

Application filed September 27, 1921. Serial No. 503,597.

To all whom it may concern:

Be it known that I, JAMES T. MOLTRUP, a citizen of the United States,residing at Beaver Falls, Beaver County, Pennsylvania, have invented anew and useful Improvement in Screens, of which the following is a full,clear, and exact description.

My invention relates to screens and particularly to screens for thedisplay of animated pictures and more particularly to screens of thattype which are collapsible for convenience in handling and storage whennot in use. M

An object of my invention is such a device which may be folded so as tooccupy a small space and which may be easily un-. folded and erected foruse.

A further object of my invention is such a device which is simple inconstruction and efficient in operation.

Further objects will be apparent from the reading of the followingdescription taken in connection with the accompanying drawin formingpart hereof and in which:

igure 1 is an elevation of the device as it appears in use;

Figure 2 is a view of the device when fold- Figure 3 shows a view ofdetail construction; a Figure 4. shows a sectional view of a windingdrum igure 5 shows a view partially in section of the arrangement forholding the screen;

Figure 6 is a side elevation of the winding drum and its holding means;and

Figure. 7 is an elevation showing the socket for the mast.

Referring to Figure 1, the device comprises a mast, which may becomposed of sections 1 and 2 and may be of any suitable length desired.This mast stands in a socket 3, suitably supported by the floor 4 orotherwise. The socket may take any desired form but as shown comprises acylindrical member 3 and a floor plate 5 having an opening therein forreceiving the mast.

Figure 7 shows the arrangement on an enlarged scale and it .will benoted that the floor plate 5 is provided with a projection 6 extendingupwardly therefrom. The member 7 is held on the mast by set screw 8 andhas an opening therein for receiving the -up-.

per end of the projection 6. This arrangepreventing the rotation of themast.

Attached to the mast are side supporting members 9 and 10, the member 9being pivoted at 11 and the member 10 at 12. Both of the members arepivoted to a member 13 adjustably secured to the mast as best shown inFigure 3. The pivots 11 and 12 are provided with thumb screws 14 and 15,re-

I spectively, for tightening the pivot when member 18. The function ofthe braces 19 and 20 is to aid in holding the members 9 and 10 in theposition shown in Figure 1.

The members 9 and 10 are provided with holders 23 and 24, in which areplaced the ends of the roller rod 25 carrying the screen member in thesame fashion as the holders of an ordinary window shade. The screencomprises a spring roller rod 25 and a sheet 26 of any desired material.Placed in the upper end of the sheet 26, as shown in Figure 1, is amember 27 shown in dotted lines. This is for the purpose of stiffeningthe upper edge of the sheet member in the same fashion as the wood stripas used in the ordinary window shade. Attached to the upper end of thesheet 26 and through the member 27, are two eyes 28, to which isfastened a chain 29, or other suitable means. A'ring is placed in thechain 29 and to the ring 30 is attached a cable 31. The cable 31 passesup from the ring 30 over a sheave 32 in the top of the mast and down inthe rear of the sheet 26 to the winding drum 33, which is shown indetail in Figures 4 and 6. This drum is provided with a shaft 34 whichis extended and bent so as to form a crank handle 35. The drum isfastened to the shaft 34 by a set screw 36.

The flange 37 on one end of the drum 33 "is provided with a notch intowhich an eccentric 38 may be turned to anchor the drum against rotation.The eccentric member 38 is provided with a flat surface 39, 'as shown inFigure 6, so that when this member is turned 180 from the position shownin Figure 6, the drum is free to rotate.

Referring again to the member 13, it will be noted in Figure 5 that thismember is supported by a sleeve 41 surrounding the mast and is providedwith a set screw 42 for holding the same in any desired adjustedposition. The member 13 is held on the member 41 by a bolt 43 and a setscrew 44 is provided for more securely holding the parts in place.

In assembling the device the sections 1 and 2 are attached together andplaced in .the socket 3 the opening in the member 7 being placed overthe projection 6. The members 9 and 10 which have been pre viouslyfolded into a position parallel with the mast around the pivots 11 and12, are moved downwardly to a horizontal position, as shown in Figure 1,and the members 19 and 20 are put in the position shown in Figure 1, soas to securely hold the members 9 and 10 in position. The position ofthe member 13, and therefore the position of the members 9 and 10, maybe adjusted by loosening the set screw 42 and placing the member 13 atany desired point on the mast. The roller rod and the sheet are nowplaced in position in the holders 23 and 24. The cable 31 is attached tothe ring 30 and by rotating the drum 33 the cable is wound thereon andthe sheet 26 is unrolled from the spring roller rod 25 to the desiredheight, whereupon the eccentric member 38 is rotated to lock the drumagainst reverse rotation. When it is desired to dismantle the device,the drum 33 is rotated in a reverse direction to allow the sheet to rollup on the roller rod 25, whereupon the rod, together with the sheet maybe removed from the holders 23 and 24, and the cable 31 is disconnectedfrom the ring 30. The members 9 and 10 may then be moved about theirpivots 11 and 12 to bring them into paralleled relation with the section1 of the mast, the members 19 and 20 having been moved into positionparallel with the members 9 and 10, respectively. When thus folded, theparts assume the position shown in Figure 2, from which it will be seenthat the parts are very compactly arranged so as to occupy minimum spaceduring the time that the device is not in operation.

Many changes and modifications may be made in the various parts withoutde arting from the spirit of my invention and desire it to be understoodthat I am not to be limited to the exact arrangement and construction ofthe details shown.

I claim:

1. In a device of the character described, the combination of a mast,members pivotally supported by said mast, and a sheet roller carriedbysaid members.

2. In a device of the character described,

' the combination of a mast, sheet-holding members operatively supportedby said mast and a sheet roller carried by said holding members, saidholding members being mounted whereby they may be folded into a positionparallel with said mast.

In a device of the character described, the combination of a mast, amember adjustably mounted thereon, holding members pivotally mounted onsaid adjustable memher, a spring roller carried by said holding members,and asheet on said spring roller.

4. In a device of the character described,

-the combination of a mast, a member adjustably mounted thereon, holdingmembers pivotally mounted on said adjustable memher, a spring rollercarried by said holding members, a sheet on said spring roller, andmeans for unrolling said sheet from said roller.

. 5. In a device of the character described, the combination of a mast,a member adjustably mounted thereon, holding members pivotally mountedon said adjustable member, a spring roller carried by said holdingmembers, a sheet on said spring roller, means for unrolling said sheetfrom said roller, and means for holding said last means in any desiredposition.

6. In a device of the character described, the combination of a mast, amember adjustably mounted thereon, holding members pivoted to saidadjustable member and brace members pivoted on said holding members, andadapted to be operatively connected to said mast.

7. In a device of the character described, the combination of a mast, amember carried by said mast, holding members pivoted at one end to saidmember, holders at the other end of each of said holding members, and aspring roller in said holders, a sheet on said spring roller and meansfor unwindlng said sheet from said roller and holding the same in anydesired position.

8. In a device of the character described, the combination of a mast, aspring roller mounted thereon, a sheet on said roller, a. cable attachedto said sheet for unrolling the same from said roller, a drum on whichsaid cable may be wound, and means for holding said drum against reverserotation.

9. In a device of the character described, the combination of a mast, aspring roller with a sheet thereon mounted on said mast and extending ina direction substantially at right angles to the axis of the mast, meansfor changing the angular relation of said roller with respect to theaxis of the mast, and means for adjusting the position of the rollerlongitudinally of the mast.

10.. In a device of the character described,

the combination of a mast, a spring roller 3.

roller with respect to the axis of the mast,

\ meaaee and extending in a direction substantially at right angles tothe axis of the mast, means for changing the angular relation of saidroller with respect to the axis of the mast,

means for adjusting the position of the rollerlongitudinally of themast, means for unwinding the sheet from the roller, and means forholding the sheet in any desired position.

12. In a device of the character described,

roller the combination of a mast, a spring roller with a sheet thereonmounted on said mast v and extending in a direction substantially atright angles to the axis of the mast, means for changing the angularrelation of said roller with respect to the axis of the mast, means foradjusting the position of the roller longitudinally of the mast, meansfor unwinding the sheet from the roller, means for holding the sheet inany desired position, and means for preventing the rotation of the mastaround its axis.

In testimony whereof I have hereunto set my hand.

JAMES 'l. MOLTRUP.

